Already within one year after the marriage of his parents in Hilversum, Jacob Philip Peper was born on 25 July 1897 in Antwerp. He married Kaatje Boekman in Amsterdam on 18 June 1925, a daughter of the bookseller Barend Boekman and Hendrina Lenson. The couple had two children, namely Hendrina Eva Philip in 1928 and Eleonora Marion Philip in 1930.
Jacob Philip Peper worked still as a chemist at a l…